﻿Public Class DeviceNetWorkForm


    Private _pi As ProjectItem

    '选择设备的网络地址
    Private _netID As Byte = 0

    '起始地址
    Private _offset As UShort = 19   '数据上传控制参数地址
    '历史记录时间间隔起始地址
    '  Private dateup_offset As UShort = 2004 '时间间隔起始地址
    Private Const Network_Active_Status As UShort = 17

    Private buf() As UShort
    Private buf1() As Short

    '正在修改参数标志
    Private _isModify As Boolean = False

    Private Sub DeviceNetWorkForm_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
        If Me._isModify Then
            Me.ExitModify()
        End If
        MyBase.OnClosing(e)
    End Sub

    Private Sub DeviceNetWorkForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        _pi = MainForm.pi

        'ProjectService.RefreshCurProjectList(_pi.ProjectID) '刷新当前工程信息

        ClearData()

        Me.HideAllControl()


        LoadAllRef()
    End Sub

    Private Sub ClearData()
        For Each ctl As Control In Me.Panel1.Controls
            If ctl.GetType Is GetType(RadioButton) Then
                CType(ctl, RadioButton).Checked = False
            End If
        Next
    End Sub

    '隐藏/显示Panel中的所有控件
    Private Sub HideAllControl()
        'For Each ctl As Control In Me.Panel1.Controls
        '    ctl.Visible = False
        '    If ctl.GetType Is GetType(RadioButton) Then
        '        CType(ctl, RadioButton).Enabled = False
        '    End If
        'Next
        Me.GroupBox3.Visible = False
        Me.btnModify.Enabled = False
        Me.btnOK.Enabled = False
        Me.lbl_tip.Visible = True
        Me.lblSelected.Text = ""
    End Sub

    Private Sub LoadAllRef()


        Dim tn As TreeNode

        Dim dts As New DevTypeService(_pi)

        For Each dti As DevTypeItem In dts.GeDevGroupList()   '设备列表
            tn = Me.TreeView1.Nodes.Add(String.Format("{0}号设备", dti.NetId))
            tn.Tag = dti
        Next

        Me.TreeView1.ExpandAll()

    End Sub

    Private Sub btnOK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnOK.Click

        'If Me.dateUploadValue.Value Mod 30 <> 0 Then
        '    msg.ShowWarning("历史数据间隔要为30秒的整数倍！")
        '    Exit Sub
        'End If
        Dim result As Boolean = False
        Me.Cursor = Cursors.WaitCursor

        TreeView1.Enabled = False

        Me.btnOK.Enabled = False
        Me.btnCancel.Enabled = False
        '  Me.ActivePanel.Enabled = False
        Me._isSaving = True
        ' result = Save()

        '主控网络地址
        result = Save()


        Me._isSaving = False
        Me.btnOK.Enabled = True
        Me.btnCancel.Enabled = True
        '  Me.ActivePanel.Enabled = True

        Me.Cursor = Cursors.Default

        If result Then
            EnableModify(False)
            msg.Show("参数保存成功")

            RefreshData() '重新读取数据
            'If Me.rb_active.Checked = True Then
            '    Me.dateUploadValue.Enabled = False
            'Else
            '    Me.dateUploadValue.Enabled = True
            'End If

        Else
            msg.ShowError("参数保存失败")
        End If

        TreeView1.Enabled = True
    End Sub

#Region "发送心跳包"

    '心跳包连续发送错误的次数
    Private _heartFailCount As Integer = 0

    '心跳值
    Private _heartValue As Short = 0

    '心跳值是否初始化
    Private _bheartValue As Boolean = False

    '是否正在发送心跳标志
    Private _heartSending As Boolean = False

    '是否正在保存标志
    Public _isSaving As Boolean = False

    '心跳包地址
    Private _heartIncreamentAddress As UShort = 7063

    ''' <summary>
    ''' 发送心跳包
    ''' </summary>
    ''' <remarks></remarks>
    Private Sub HeartSend()
        If _bheartValue = False Then
            Dim b() As Short
            b = COMHelper.Instance.Send4Short(g_netID, FunctionCode.WordWritableRead, _heartIncreamentAddress, 1)
            If b IsNot Nothing AndAlso b.Length = 1 Then
                _heartValue = b(0)
                _bheartValue = True
            Else
                Exit Sub
            End If
        End If

        _heartValue = (_heartValue + 1) Mod UShort.MaxValue

        Dim result As Boolean
        result = COMHelper.Instance.Write(g_netID, FunctionCode.WordWrite, _heartIncreamentAddress, _heartValue)

        If result Then
            _heartFailCount = 0
        Else
            _heartFailCount += 1
        End If

        If _heartFailCount > 10 Then
            '提示用户可能断开连接了.
        End If

    End Sub

    ''' <summary>
    ''' 心跳定时器Tick事件
    ''' </summary>
    ''' <param name="sender"></param>
    ''' <param name="e"></param>
    ''' <remarks></remarks>
    Private Sub TimerHeart_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TimerHeart.Tick
        If Not g_HeartSend Then
            Exit Sub
        End If

        If _heartSending OrElse _isSaving Then
            Exit Sub
        End If

        _heartSending = True
        Me.HeartSend()
        _heartSending = False
    End Sub

#End Region

    Private Sub btnCancel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCancel.Click
        Me.Close()
    End Sub

    Private Sub btnModify_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnModify.Click
        Me.btnModify.Enabled = False
        If EnterModify() = False Then
            msg.Show("无法修改参数请重试")
            Me.btnModify.Enabled = True
            Exit Sub
        End If

        EnableModify(True)
       
    End Sub

    Private Sub EnableModify(ByVal value As Boolean)

        Me.btnModify.Enabled = Not value
        Me.btnOK.Enabled = value


        For Each ctl As Control In Me.Panel1.Controls
            If ctl.GetType Is GetType(RadioButton) Then
                CType(ctl, RadioButton).Enabled = value
            End If
        Next
        Me.nud_lostpowerpredelay.Enabled = value

    End Sub


    ''' <summary>
    ''' 保存所有参数
    ''' </summary>
    ''' <returns></returns>
    ''' <remarks></remarks>
    Private Function Save() As Boolean

        Dim result As Boolean


        If buf(0) = 0 AndAlso Me.rb_active.Checked = True Then
            result = Save(Network_Active_Status, 1)
            If result = False Then
                Return False
            End If

        End If

        If buf(0) = 1 AndAlso Me.rb_inactive.Checked = True Then
            result = Save(Network_Active_Status, 0)
            If result = False Then
                Return False
            End If

        End If

        If buf(1) <> Me.nud_lostpowerpredelay.Value Then

            result = Save((Network_Active_Status + 1), Me.nud_lostpowerpredelay.Value)
            If result = False Then
                Return False
            End If

        End If



        '设置修改使能变量
        If ParameterModifyClass.SetModifyConfirm(_netID) = False Then
            Return False
        End If

        'If ExitModify() = False Then
        '    Debug.Write("ExitModify错误")
        'End If

        Return True

FailedHandler:
        If ExitModify() = False Then
            Debug.Write("ExitModify错误")
        End If
        Return False
    End Function

    ''' <summary>
    ''' 保存参数
    ''' </summary>
    ''' <param name="value"></param>
    ''' <returns></returns>
    ''' <remarks></remarks>
    Private Function save(ByVal value As UShort) As Boolean
        Dim offset As UShort = _offset + 1000
        Return COMHelper.Instance.Write(_netID, FunctionCode.WordWrite, offset, value)
    End Function
    ''' <summary>
    ''' 保存参数
    ''' </summary>
    ''' <param name="index"></param>
    ''' <param name="value"></param>
    ''' <returns></returns>
    ''' <remarks></remarks>
    Private Function save(ByVal index As UShort, ByVal value As Short) As Boolean
        Dim offset As UShort = index + 1000
        Return COMHelper.Instance.Write(_netID, FunctionCode.WordWrite, offset, value)
    End Function

    ''' <summary>
    ''' 进入修改
    ''' </summary>
    ''' <returns></returns>
    ''' <remarks></remarks>
    Private Function EnterModify() As Boolean
        If g_test Then
            _isModify = True
            Return True
        End If

        _isModify = True

        Dim result As Boolean
        result = ParameterModifyClass.EnterModify(_netID)

        If result = False Then
            _isModify = False
            Return False
        End If

        '开始发送心跳包
        Me.TimerHeart.Start()

        Return True
    End Function


    ''' <summary>
    ''' 退出修改
    ''' </summary>
    ''' <returns></returns>
    ''' <remarks></remarks>
    Private Function ExitModify() As Boolean
        '门变量置为1
        Dim result As Boolean
        result = ParameterModifyClass.ExitModify(_netID)

        '停止发送心跳包
        Me.TimerHeart.Stop()

        If result = True Then  '修改门变量成功
            _isModify = False
        End If
        Return True
    End Function

    Private Sub TreeView1_AfterSelect(ByVal sender As System.Object, ByVal e As System.Windows.Forms.TreeViewEventArgs) Handles TreeView1.AfterSelect
        Dim tn As TreeNode
        Dim dti As DevTypeItem

        tn = Me.TreeView1.SelectedNode

        If tn Is Nothing Then
            Exit Sub
        End If

        If TypeOf tn.Tag Is DevTypeItem Then

            TreeView1.Enabled = False

            ClearData() '切换前先清除显示修正数据

            dti = CType(tn.Tag, DevTypeItem)

            _netID = dti.NetId '记录当前选择的设备ID

            '显示选择设备的名称
            Me.lblSelected.Text = tn.Text

            '关闭设备选择提示
            lbl_tip.Visible = False

            '禁止点击"修改"按钮前修改参数
            Me.btnModify.Enabled = False
            Me.btnOK.Enabled = False
            Me.GroupBox3.Visible = True

            For Each ctl As Control In Me.Panel1.Controls
                ctl.Visible = True
            Next

            '如果正在修改参数，则取消修改，置位门变量，停止发送心跳包
            If Me._isModify Then
                Me.ExitModify()
            End If

            _netID = dti.NetId   '保存当前选择的设备号

            '读取参数
            Dim result As Boolean = RefreshData()
         

            EnableModify(False)

            If result = False Then
                Me.btnModify.Enabled = False
            Else
                Me.btnModify.Enabled = True
            End If
            TreeView1.Enabled = True

        End If
    End Sub


    ''' <summary>
    ''' 刷新AI原点修正数据
    ''' </summary>
    ''' <remarks></remarks>
    Private Function RefreshData() As Boolean
        Dim k As Integer
        Me.Cursor = Cursors.WaitCursor

        '读取网络设备类型

        Try
            buf = COMHelper.Instance.Send4UShort(_netID, FunctionCode.WordWritableRead, Network_Active_Status, 2)

        Catch ex As Exception
            Debug.WriteLine(ex.Message)
        Finally
            Me.Cursor = Cursors.Default
        End Try

        If buf Is Nothing OrElse buf.Length <= 0 Then
            Me.btnModify.Enabled = False
            msg.ShowError("读取参数失败")

            Return False
        End If

        k = buf(0)


        If k = 1 Then
            Me.rb_active.Checked = True
            Me.rb_inactive.Checked = False
        Else
            Me.rb_active.Checked = False
            Me.rb_inactive.Checked = True
        End If
        If buf(1) >= 0 Then
            Me.nud_lostpowerpredelay.Value = buf(1)
            ' Me.nud_lostpowerpredelay.Tag = buf(1)
        Else
            Me.nud_lostpowerpredelay.Value = 1
        End If
        Me.btnModify.Enabled = True
        Return True

    End Function

    
End Class